chatoyant /ʃəˈtɔɪ.ənt/adjective 1noun 1forms 3 adjective1 •Having a certain optical reflectance effect, which can be likened to the sheen of a spool of silk.I managed to move sufficiently to see at the top, as I fired up the stairs, the yellow face of Dr. Fu-Manchu, to see the gleaming, chatoyant eyes, greenly terrible, as they sought to pierce the gloom. — 1913 noun1 •A hard stone, such as the cat's-eye, which presents on a polished surface, and in the interior, an undulating or wavy light. formschatoyants · more chatoyant · most chatoyant